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Build more responsive apps with the Decisions API

The Decisions API is an OpenAI endpoint, built on GPT-6 Luna, that answers bounded questions about text, images or native JSON inputs, up to 10x faster than Luna through the Responses API. It returns a probability (predicate), a choice or a score. It is generally available, accepts up to 400 questions per request, and costs $0.10 per million input tokens with no output charges.

TL;DR Announces general availability of OpenAI's Decisions API for fast, cheap classification, routing and scoring decisions with GPT-6 Luna.

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  • Predicate answer type
  • Choice answer type
  • Score answer type
  • Prompt caching for reused context
  • Live voice decisions